Happy surprise! OSH in the OC carries vermiculite, peat, and chicken manure, among other things. They are not with the bags in the garden area. They have a display of soil ammendments with pull tags that you bring to the register and then the stuff is loaded in.

This may be old stuff for some of you, but it is way better than the running around I had to do a few years ago when one store had peat and another store carried vermiculite.